The new Angular(can’t call it Angular 2 anymore) ecosystem is still evolving. Control libraries start to appear.
Here are some of the libraries I had a look at:
(Don’t ask me which one I prefer, as with all control libraries they have their pros and cons you’ll have to learn to live with…)
Material Design components for Angular apps https://material.angular.io/
Native Angular components & directives for Lightning Design System http://ng-lightning.github.io/ng-lightning/#/
Covalent(https://teradata.github.io/covalent/#/) is a UI Platform that combines proven design language with a comprehensive web framework, built on Angular & Angular-Material (Design).
Kendo Angular UI
Professional Grade Angular UI Components http://www.telerik.com/kendo-angular-ui/